The avian reproductive tract permits internal fertilization but the development and survival of the ovum occur externally, outside the body,... View Article
Mosquitoes that inhabit sporozoites inside the salivary glands inject them into the bloodstream of a host vertebrate in the process of feeding.... View Article
Fungi - Many fungi reproduce both sexually and asexually. But some reproduce only asexually and some only sexually. Asexual modes of reproduction... View Article
Tulips reproduce from cross-pollination of seeds. They can also self-pollinate through bulbs that form around the base of the main bulb of the... View Article
In humans, there are eight main blood types. Some, comparatively, are rarer than others. However, AB negative is said to be the rarest of all so... View Article
Albinism is a rarely occurring genetic disorder in which the hair, skin or eyes show little to no colour. Albinism is said to be caused by a... View Article
Heterozygous is a term used to describe allele pairs. It is a condition in which an organism has two different alleles of a gene. Example,... View Article
In codominance, neither of the alleles is able to mask the expression or effect of the other allele. A good example of codominance is seen in... View Article
Dominance requires one copy of the dominant allele to be expressed and a straight thumb is usually deemed to be a dominant characteristic, even... View Article
In incomplete dominance, an intermediate form of inheritance is seen wherein one allele for a particular characteristic is not fully expressed... View Article
Eye colour inheritance is regulated by interactions of many genes, not one. Hence it is considered to be a polygenic trait. There are close to... View Article
Pleiotropy is displayed by all types of albinism. Albinism is an infrequently occurring genetic disorder in which the hair, skin or eyes show... View Article
The short answer to it is yes. Cystic fibrosis is a genetic disorder and is one of the common examples of pleiotropy. It is a pleiotropic gene.... View Article
Organisms (fossils) showing intermediate conditions between ancestral forms and their corresponding descendants are known to be transitional... View Article
Viruses are known to infect by embedding smaller segments of its genetic material in the host's DNA. Though this is rare, the incorporation of... View Article
Mutations are permanent, heritable changes in the nucleotide sequence of a gene or a chromosome. Listed below are the types of mutations - Types... View Article
Triplet code is a series of three nucleotides that determine a single amino acid. The smallest combination of four bases that could encode all 20... View Article
Meiosis results in the formation of 4 cells from a single cell. Daughter cells contain half the number of chromosomes as the parent cell so it is... View Article
Carrier proteins are involved in active transport as well as in facilitated diffusion. Active transport requires energy to transport molecules... View Article
The C4 pathway consists of additional steps compared to the C3 pathway. In the C4 pathway, carbon dioxide is first fixed in the mesophyll cells... View Article
